Method for producing propene oxide
    3.
    发明授权
    Method for producing propene oxide 失效
    丙烯氧化物的制备方法

    公开(公告)号:US06303800B1

    公开(公告)日:2001-10-16

    申请号:US09555978

    申请日:2000-07-14

    IPC分类号: C07D30110

    CPC分类号: C07D301/08 Y02P20/52

    摘要: Process for preparing propene oxide, in which a mixture of propene and oxygen or an oxygen-containing gas is reacted at a temperature in the range from 150 to 500° C., in the presence or absence of a catalyst, in a reactor, wherein all or part of the interior of the reactor is lined with inert materials. The inert material used is at least one of the materials of the following group: one or more noble metals of transition group VIII of the Periodic Table, in particular gold, titanium and tantalum, glass, enamel, quartz, ceramic and Teflon. The selectivity to propene oxide is >60%.

    摘要翻译: 制备丙烯氧化物的方法,其中丙烯和氧气或含氧气体的混合物在反应器中在催化剂存在或不存在的情况下,在150-500℃的温度下反应,其中 反应器内部的全部或部分内衬惰性材料。 使用的惰性材料是以下组中的至少一种材料:一种或多种元素周期表第八族过渡金属,特别是金,钛和钽,玻璃,搪瓷,石英,陶瓷和特氟隆。 氧化丙烯的选择性> 60%。

    Plant covering
    4.
    外观设计
    Plant covering 有权
    植物覆盖

    公开(公告)号:USD629713S1

    公开(公告)日:2010-12-28

    申请号:US29339627

    申请日:2009-07-02

    申请人: Rolf Schulz

    设计人: Rolf Schulz

    Process for preparing trioxane, polyoxymethylene and polyoxymethylene copolymers
    5.
    发明授权
    Process for preparing trioxane, polyoxymethylene and polyoxymethylene copolymers 有权
    制备三恶烷,聚甲醛和聚甲醛共聚物的方法

    公开(公告)号:US06653487B2

    公开(公告)日:2003-11-25

    申请号:US10176997

    申请日:2002-06-21

    IPC分类号: C07D32306

    摘要: A process for preparing trioxane by converting methanol to formaldehyde by dehydrogenation at a temperature of 300 to 1000° C., in the presence of a catalyst, wherein the catalyst is generated physically separately from the reactor and at a temperature above the dehydrogenation temperature, and trimerizing the formaldehyde prepared in this way to give trioxane. Also described is a process for preparing polyoxymethylene and polyoxymethylene copolymers from the formaldehyde.

    摘要翻译: 在催化剂存在下,在300〜1000℃的温度下通过脱氢将甲醇转化为甲醛的方法,其中所述催化剂与反应器物理分开生成,并且在高于脱氢温度的温度下生成,以及 以这种方式制备的甲醛三聚,得到三恶烷。 还描述了从甲醛制备聚甲醛和聚甲醛共聚物的方法。